Merge tag 'driver-core-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the set of driver core updates for 6.7-rc1. Nothing major in
  here at all, just a small number of changes including:

   - minor cleanups and updates from Andy Shevchenko

   - __counted_by addition

   - firmware_loader update for aborting loads cleaner

   - other minor changes, details in the shortlog

   - documentation update

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (21 commits)
  firmware_loader: Abort all upcoming firmware load request once reboot triggered
  firmware_loader: Refactor kill_pending_fw_fallback_reqs()
  Documentation: security-bugs.rst: linux-distros relaxed their rules
  driver core: Release all resources during unbind before updating device links
  driver core: class: remove boilerplate code
  driver core: platform: Annotate struct irq_affinity_devres with __counted_by
  resource: Constify resource crosscheck APIs
  resource: Unify next_resource() and next_resource_skip_children()
  resource: Reuse for_each_resource() macro
  PCI: Implement custom llseek for sysfs resource entries
  kernfs: sysfs: support custom llseek method for sysfs entries
  debugfs: Fix __rcu type comparison warning
  device property: Replace custom implementation of COUNT_ARGS()
  drivers: base: test: Make property entry API test modular
  driver core: Add missing parameter description to __fwnode_link_add()
  device property: Clarify usage scope of some struct fwnode_handle members
  devres: rename the first parameter of devm_add_action(_or_reset)
  driver core: platform: Unify the firmware node type check
  driver core: platform: Use temporary variable in platform_device_add()
  driver core: platform: Refactor error path in a couple places
  ...

4 files changed, 15 insertions, 9 deletions

diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
index bf68e3947814..3ef0b312ae71 100644
--- a/drivers/base/firmware_loader/fallback.c
+++ b/drivers/base/firmware_loader/fallback.c
@@ -46,7 +46,7 @@ static inline int fw_sysfs_wait_timeout(struct fw_priv *fw_priv,  long timeout)
 
 static LIST_HEAD(pending_fw_head);
 
-void kill_pending_fw_fallback_reqs(bool only_kill_custom)
+void kill_pending_fw_fallback_reqs(bool kill_all)
 {
 	struct fw_priv *fw_priv;
 	struct fw_priv *next;
@@ -54,9 +54,13 @@ void kill_pending_fw_fallback_reqs(bool only_kill_custom)
 	mutex_lock(&fw_lock);
 	list_for_each_entry_safe(fw_priv, next, &pending_fw_head,
 				 pending_list) {
-		if (!fw_priv->need_uevent || !only_kill_custom)
+		if (kill_all || !fw_priv->need_uevent)
 			 __fw_load_abort(fw_priv);
 	}
+
+	if (kill_all)
+		fw_load_abort_all = true;
+
 	mutex_unlock(&fw_lock);
 }
 
@@ -86,7 +90,7 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout)
 	}
 
 	mutex_lock(&fw_lock);
-	if (fw_state_is_aborted(fw_priv)) {
+	if (fw_load_abort_all || fw_state_is_aborted(fw_priv)) {
 		mutex_unlock(&fw_lock);
 		retval = -EINTR;
 		goto out;
diff --git a/drivers/base/firmware_loader/fallback.h b/drivers/base/firmware_loader/fallback.h
index 144148595660..ccf912bef6ca 100644
--- a/drivers/base/firmware_loader/fallback.h
+++ b/drivers/base/firmware_loader/fallback.h
@@ -13,7 +13,7 @@ int firmware_fallback_sysfs(struct firmware *fw, const char *name,
 			    struct device *device,
 			    u32 opt_flags,
 			    int ret);
-void kill_pending_fw_fallback_reqs(bool only_kill_custom);
+void kill_pending_fw_fallback_reqs(bool kill_all);
 
 void fw_fallback_set_cache_timeout(void);
 void fw_fallback_set_default_timeout(void);
@@ -28,7 +28,7 @@ static inline int firmware_fallback_sysfs(struct firmware *fw, const char *name,
 	return ret;
 }
 
-static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }
+static inline void kill_pending_fw_fallback_reqs(bool kill_all) { }
 static inline void fw_fallback_set_cache_timeout(void) { }
 static inline void fw_fallback_set_default_timeout(void) { }
 #endif /* CONFIG_FW_LOADER_USER_HELPER */
diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h
index bf549d6500d7..e891742ba264 100644
--- a/drivers/base/firmware_loader/firmware.h
+++ b/drivers/base/firmware_loader/firmware.h
@@ -86,6 +86,7 @@ struct fw_priv {
 
 extern struct mutex fw_lock;
 extern struct firmware_cache fw_cache;
+extern bool fw_load_abort_all;
 
 static inline bool __fw_state_check(struct fw_priv *fw_priv,
 				    enum fw_status status)
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index b58c42f1b1ce..ea28102d421e 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -93,6 +93,7 @@ static inline struct fw_priv *to_fw_priv(struct kref *ref)
 DEFINE_MUTEX(fw_lock);
 
 struct firmware_cache fw_cache;
+bool fw_load_abort_all;
 
 void fw_state_init(struct fw_priv *fw_priv)
 {
@@ -1524,10 +1525,10 @@ static int fw_pm_notify(struct notifier_block *notify_block,
 	case PM_SUSPEND_PREPARE:
 	case PM_RESTORE_PREPARE:
 		/*
-		 * kill pending fallback requests with a custom fallback
-		 * to avoid stalling suspend.
+		 * Here, kill pending fallback requests will only kill
+		 * non-uevent firmware request to avoid stalling suspend.
 		 */
-		kill_pending_fw_fallback_reqs(true);
+		kill_pending_fw_fallback_reqs(false);
 		device_cache_fw_images();
 		break;
 
@@ -1612,7 +1613,7 @@ static int fw_shutdown_notify(struct notifier_block *unused1,
 	 * Kill all pending fallback requests to avoid both stalling shutdown,
 	 * and avoid a deadlock with the usermode_lock.
 	 */
-	kill_pending_fw_fallback_reqs(false);
+	kill_pending_fw_fallback_reqs(true);
 
 	return NOTIFY_DONE;
 }